{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "Prostaglandin E2 showed a hyperalgesic effect at doses of 1 pg to 10 ng / mouse , but the effect lasted shorter ( 3 - 30 min ) than that of prostaglandin D2 ."}
{"Chemical": ["Prostaglandin E2", "pg", "prostaglandin D2"], "Disease": ["hyperalgesic"]}